.content-wrap{
    background-color: #ccc;
}
.content{
    display: flex;
    justify-content: space-between;
    width: 1200px;
    margin: 0 auto;
}
.left{
    width: 880px;
    border: 2px solid rosybrown;
    background-color: aliceblue;
}
.right{
    width: 300px;
    height: 500px;
    background-color: wheat;
}